While we only hear morning melodies, for the birds, these vocalizations and songs constitute serious life-or-death ...

Add Yahoo as a preferred source to see more of our stories on Google. Mountain chickadees are unusual in having more complex calls than songs. Vladimir Pravosudov I approach a flock of mountain ...

Not all pet birds have the physical or cognitive ability to learn songs, and understanding the difference can help owners set realistic expectations. For example, vocal learning species—including ...

Chickens can't speak, but they can definitely make themselves heard. Most people who have visited a poultry farm will recall chicken vocalization – the technical term for clucking and squawking – as a ...

Birds are the master vocalists of the animal kingdom. They can make a remarkable variety of sounds. But why is a barred owl more of a baritone, while a cedar waxwing is a soprano? And what influences ...

Foreward, by K. Z. Lorenz.--Tonal quality of bird sounds, by P. Marler.--Experimental studies in the ontogeny of avian vocalizations, by M. Konishi and F. Nottebohm.--Song as a reinforcer, by J. G.